Digital flow computer employing a logarithmic mode of computation



July 30, 1963 J. F. BYRNE 3,099,742

DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE OF COMPUTATION FiledMarch 13, 1959 37 Sheets-Sheet 1 July 30, 1963 3,099,742

J. F. BYRNE DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE OFCOMPUTATION Filed March 13, 1959 37 Sheets-Sheet 2 100B I+A +5 INVENTOR.Joseph 1 B yrne BY (MAW HIS ATTORNEY July 30, 1963 Filed March 13, 1959J. F. BYRNE 3,09 DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE 0FCOMPUTATION 5'7 Sheets-Sheet 5 fldder BY MA W 55 Ammmm July 30, 1963 J.F. BYRNE 3,099,742

DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE OF COMPUTATION FiledMarch 13, 1959 37 Sheets-Sheet 4 Q E q Q N 3 Q fi m q l N N Q Q I i w $5w w: i

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July 30, 1963 J. F. BYRNE 3,099,742

DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE OF COMPUTATION 57Sheets-Sheet 5 Filed March 15, 1959 T IQ 1 l I 4 T July 30, 1963 J. F.BYRNE 3,099,742

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INVENTOR. Joseph E fiyrne BY (1 L W,

HIS ATTORNEY July 30, 1963 J. F. BYRNE 3,099,742 DIGITAL. FLow COMPUTEREMPLOYING A LOGARITHMIC MODE OF COMPUTATION Filed March 13, 1959 3''!Sheets-Sheet 8 July 30, 1963 J. F. BYRNE 3,099,742

DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE 0F COMPUTATION 57Sheets-Sheet 9 Filed March 15, 1959 y 1963 J. F. BYRNE 3,099,742

DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC Q MODE OF COMPUTATIONFiled March 13, 1959 37 Sheets-Sheet 10 [u-LW July 30, 1963 J. F. BYRNE3,099,742

DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE OF COMPUTATION FiledMarch .13, 1959 37 Sheets-Sheet 11 R52 R54 R56 c 11111 A I d i I a w Jigr 0 T i i g i 11 a E I L I I) CT? b I J C T i l I 11- d I: m e i e l J:D i

INVENTOR. Joseph E Byrne BY 4/- l M.

HIS ATTORNEY July 30, 1963 J. F. BYRNE 3,099,742

DIGITAL mow COMPUTER EMPLOYING A LOGARITHMIC MODE 0F COMPUTATION I FiledMarch 15, 1959 57 Sheets-Sheet 13 l fiqjl i i ii i fl'fi i INVENTOR. FJoseph I. Byrne BY 41 Z ,W;

H15 ATTORNEY J. F. BYRNE July 30, 1963 3,099,742 DIGITAL FLOW COMPUTEREMPLOYING A LOGARITHMIC MODE OF COMPUTATION 37 Sheets-Sheet 14 FiledMarch 13, 1959 1 INVENIOR. J'osgv/i flgpne.

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.1. F. BYRNE 3,099,742 DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC'July 30, 1963 MODE OF COMPUTATION 3'7 Sheets-Sheet 15 Filed March 15,1959 Fv'51o? Joseph Bynrze. BY A W 141265109 Gezzenaon Fly [112.

July 30, 1963 J. F. BYRNE 3,099,742

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INVENTOR.

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HIS flTFOEA EY July 30, 1963 J. F. BYRNE 3,099,742

DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE OF COMPUTATION 57Sheets-Sheet 17 Filed March 13, 1959 I n Z w n Z 4 wlllllllllllllllllllllll l.. cdefi July 30, 1963 J. F. BYRNE 3,099,742

DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE OF COMPUTATION FiledMarch 15, 1959 5'? Sheets-Sheet 19 b (5: Input d c Migbzed F Binary 12 iD1256 D1257 D1256 N V I y July 30, 1963 J. F. BYRNE 3,099,742

DIGITAL FLOW COMPUTER EMPLOYING A LOGARITHMIC MODE OF COMPUTATION 37Sheets-Sheet 20 Filed March 13, 1959

1.A FLOW COMPUTER FOR COMPUTING FLUID FLOW IN ACCORDANCE WITH THEEQUATION Q=C$DS, WHERE Q IS THE RATE OF FLOW, D IS THE DIFFERENTIALPRESSURE ACROSS AN ORIFICE IN A CONDUIT IN WHICH THE FLUID IS FLOWING, SIS THE STATIC PRESSURE IN THE CONDUIT, AND C IS AN ORIFICE COEFFICIENT,COMPRISING, IN COMBINATION, FIRST SECOND AND THIRD LOGARITHM GENERATORSFOR PRODUCING OUTPUTS IN ACCORDANCE WITH THE LOGARITHMS OF AN APPLIEDINPUT SIGNAL, MEANS FOR APPLYING A SIGNAL IN ACCORDANCE WITH C TO SAIDFIRST LOGARITHM GENERATOR, MEANS FOR APPLYING A SIGNAL IN ACCORDANCEWITH D TO SAID SECOND LOGARITHM GENERATOR, MEANS FOR APPLYING A SIGNALIN ACCORDANCE WITH S TO SAID THIRD LOGARITHM GENERATOR, FIRST ADDERMEANS CONTROLLED BY THE OUTPUTS OF SAID SECOND AND THIRD LOGARITHMGENERATORS FOR PRODUCING AN OUTPUT IN ACCORDANCE WITH ONE-HALF THE SUMOF THEIR OUTPUTS, SECOND ADDER MEANS CONTROLLED BY SAID FIRST ADDERMEANS AND SAID FIRST LOGARITHM GENERATOR FOR PRODUCING AN OUTPUT INACCORDANCE WITH THE SUM OF THEIR OUTPUTS, AN ANTI-LOGARITHM GENERATORFOR PRODUCING AN OUTPUT IN ACCORDANCE WITH THE ANTI-LOGARITHM OF ANAPPLIED INPUT, AND MEANS CONNECTING THE OUTPUT OF SAID SECOND ADDER TOCONTROL SAID ANTI-LOGARITHM GENERATOR, WHEREBY THE OUTPUT OF SAIDANTI-LOGARITHM GENERATOR VARIES IN ACCORDANCE WITH Q.